Element: PERM

The PERM operator takes one or more sub-formulas as parameter, and representsthe permutation these sub-formulas, that is, the sub-formulas in anyorder but restricted in the sense that each sub-formula can occur atmost once.

Content

Non-empty mixed sequence of
CONCAT
REPEAT
ELEMENTREF
ENCLOSED
DISJUNCT
ALIEN
PCDATA
PERM

Appears in

CONCAT; DISJUNCT; FORMULA; ENCLOSED; PERM; REPEAT

DTD declaration

<!ELEMENT PERM
(CONCAT| REPEAT| ELEMENTREF| ENCLOSED| DISJUNCT| ALIEN| PCDATA| PERM)+
>